F16H 25/20
Screw mechanisms
Official title: Screw mechanisms (with automatic reversal F16H25/12)
F16H25/20 (Screw mechanisms) appears on 4,117 US grants and 4,071 published applications in this corpus.
Search patents in F16H- Granted patents
- 4,117
- Published applications
- 4,071
- Assignees
- 1,581
- Inventors
- 6,649
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 21 | 0 |
| 1978 | 16 | 0 |
| 1979 | 17 | 0 |
| 1980 | 20 | 0 |
| 1981 | 24 | 0 |
| 1982 | 20 | 0 |
| 1983 | 9 | 0 |
| 1984 | 23 | 0 |
| 1985 | 21 | 0 |
| 1986 | 38 | 0 |
| 1987 | 45 | 0 |
| 1988 | 44 | 0 |
| 1989 | 59 | 0 |
| 1990 | 46 | 0 |
| 1991 | 36 | 0 |
| 1992 | 43 | 0 |
| 1993 | 27 | 0 |
| 1994 | 46 | 0 |
| 1995 | 30 | 0 |
| 1996 | 41 | 0 |
| 1997 | 38 | 0 |
| 1998 | 50 | 0 |
| 1999 | 57 | 0 |
| 2000 | 63 | 0 |
| 2001 | 63 | 30 |
| 2002 | 53 | 72 |
| 2003 | 56 | 97 |
| 2004 | 64 | 85 |
| 2005 | 50 | 99 |
| 2006 | 59 | 105 |
| 2007 | 53 | 86 |
| 2008 | 42 | 122 |
| 2009 | 64 | 121 |
| 2010 | 47 | 151 |
| 2011 | 86 | 136 |
| 2012 | 113 | 114 |
| 2013 | 89 | 129 |
| 2014 | 106 | 153 |
| 2015 | 132 | 210 |
| 2016 | 182 | 210 |
| 2017 | 174 | 274 |
| 2018 | 156 | 258 |
| 2019 | 229 | 293 |
| 2020 | 259 | 318 |
| 2021 | 271 | 232 |
| 2022 | 252 | 197 |
| 2023 | 207 | 145 |
| 2024 | 179 | 189 |
| 2025 | 170 | 143 |
| 2026 | 107 | 102 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16H 25/22With balls, rollers, or similar members between the co-operating parts1,813
- F16H 2025/2062Arrangements for driving the actuatorIndexing code1,606
- F16H 25/24Elements essential to such mechanisms1,279
- F16H 25/2015Means specially adapted for stopping actuators in the end position421
- F16H 2025/204Axial sliding means, i.e. for rotary support and axial guiding of nutIndexing code330
- F16H 2025/2031Actuator casingsIndexing code288
- F16H 25/2003With arrangements for taking up backlash197
- F16H 25/2021With means for avoiding overloading173
All 18 subgroupsShow fewer
- F16H 25/2025With means to disengage the nut or screw from their counterpart123
- F16H 25/205Comprising alternate power paths119
- F16H 25/2056Telescopic screws with at least three screw members in coaxial arrangement100
- F16H 2025/2043Screw mechanisms driving an oscillating leverIndexing code97
- F16H 2025/2037Actuator supports or means for fixing piston endIndexing code85
- F16H 2025/2059Common movement by two screws or two nutsIndexing code84
- F16H 25/2018With both screw and nut being driven, i.e. screw and nut are64
- F16H 2025/2046With gears arranged perpendicular to screw shaft axisIndexing code50
- F16H 2025/2053Screws in parallel arrangement driven simultaneously with an output member moved byIndexing code45
- F16H 2025/2028Using screw profiles with high efficiency for converting reciprocating motion into oscillatingIndexing code22
Recent patents
- Gear unit, geared motor and longitudinal adjuster6 Oct 2026US 12,752,669 B2Adient US LLC
- Steering gears with electric steering assist systems and related methods6 Oct 2026US 12,752,835 B2Ford Global Technologies, LLC
- Actuator using a wave generator6 Oct 2026US 12,753,828 B1Schaeffler Technologies AG & Co. KG
- Linear driving mechanism with integrated housing having gear ring and slide rail6 Oct 2026US 12,753,829 B2AAC Microtech (Changzhou) Co., Ltd.
- Ball screw assembly having a deflector6 Oct 2026US 12,753,830 B1Schaeffler Technologies AG & Co. KG
- Ball screw device8 Oct 2026US 2026/0309211 A1Nsk Ltd.
- Lead screw transmission support system capable of suppressing deformation and control method8 Oct 2026US 2026/0309212 A1Dalian University of Technology
- Actuator for providing a torque, said actuator comprising a linear drive8 Oct 2026US 2026/0309213 A1Schaeffler Technologies AG & Co. KG
- Lock assembly for linear actuators8 Oct 2026US 2026/0309227 A1Woodward, Inc.
- Robot1 Oct 2026US 2026/0295813 A1Dmg Mori Co., Ltd.
Most cited
By later US patents
- Apparatus for endoscopic procedures1,289US 9,216,013 B2Covidien LP · 2015
- Handheld surgical handle assembly, surgical adapters for use between surgical handle assembly and surgical end effectors, and methods of use1,211US 9,597,104 B2Covidien LP · 2017
- Anti-backlash nut having a free floating insert for applying an axial force to a lead screw633US 5,303,606 A1994
- Adapter assembly for surgical device617US 10,617,411 B2Covidien LP · 2020
- Powered end effector assembly with pivotable channel601US 10,561,419 B2Covidien LP · 2020